Contraception is not as controversial as it used to be. Nowadays effective anticonception methods are available for a variety of reasons. For example, people who are not in a relationship typically want to prevent pregnancy. The fact that anticonception is becoming more ordinary has a positive impact on the number of teen pregnancies, especially in the United States. Another good reason is the reduction of healthcare costs by avoiding unnecessary abortions. Hormonal methods are very effective. The methods include the pill, the patch, the vaginal ring and injections. The combination birth control pill contains progestin, oestrogen and a synthetic progesterone in slightly higher levels than normal. The pill needs to be taken for twenty-one days with a placebo or no-pill seven days in between. There are variations on this number of placebos versus active pills. The pill prevents ovulation by heightening levels of oestrogen and progesterone, and thus inhibiting FSH and LH production. Progestin makes the tissue very thick so implantation if the eggs were fertilized is almost impossible. In the placebo days, when progestin and oestrogen are not taken, a withdrawal bleeding takes place.The failure rate...